Initial data commit

Task/Reverse-a-string/Python/reverse-a-string-4.py

@@ -0,0 +1,29 @@
+import unicodedata
+
+def ureverse(ustring):
+    'Reverse a string including unicode combining characters'
+    groupedchars = []
+    uchar = list(ustring)
+    while uchar:
+        if unicodedata.combining(uchar[0]) != 0:
+            groupedchars[-1] += uchar.pop(0)
+        else:
+            groupedchars.append(uchar.pop(0))
+    # Grouped reversal
+    groupedchars = groupedchars[::-1]
+
+    return ''.join(groupedchars)
+
+def say_string(s):
+    return ' '.join([s, '=', ' | '.join(unicodedata.name(ch, '') for ch in s)])
+
+def say_rev(s):
+    print(f"Input:              {say_string(s)}")
+    print(f"Character reversed: {say_string(s[::-1])}")
+    print(f"Unicode reversed:   {say_string(ureverse(s))}")
+    print(f"Unicode reverse²:   {say_string(ureverse(ureverse(s)))}")
+
+if __name__ == '__main__':
+    ucode = ''.join(chr(int(n[2:], 16)) for n in
+                     'U+0041 U+030A U+0073 U+0074 U+0072 U+006F U+0308 U+006D'.split())
+    say_rev(ucode)